Pollard led the Ravens with 98 tackles while also chipping in two sacks and an interception. He also racked up 17 tackles during the team's playoff run but is one of several stars from the unit that won't be back in Baltimore next season.

The signing of Pollard, who is known for his hard-hitting tendencies, creates a logjam for the Titans. They previously signed George Wilson in February after he was released by the Buffalo Bills, and Michael Griffin was already on the roster.

It will be interesting to see if they attempt to rotate the three or if Wilson ends up serving in a reserve role with more duties on special teams. None of the three seems likely to move to cornerback, the normal shift for a defensive-backfield backlog.

With that said, given the chance to sign a player of Pollard's caliber, it's hard to blame the Titans for going after him. He's one of the league's most versatile safeties, capable of joining the box to stop the run or using his playmaking skills in the secondary.

It's a one-year deal, so it also gives the 28-year-old veteran a chance to prove himself again with hopes of hitting a more favorable market next season while still in his prime.

He joins a defense that ranked dead last in the NFL last season in points against at more than 29 per game. Although more upgrades are still needed—especially along the line—adding Pollard should at least help shore up the secondary.